Hi. Recently I did something I've never done before - I drew a panel in three-point perspective. Being a bit unsure of my perspective-drawing skills, I figured I might need a second opinion before the page is finished...
Hm... yeah, it looks like the building's leaning. I think the problem might be that the ground is so visible. In my experience, 3 pt perspective is used when looking up, or down... but not straight across like this seems to be. Cut off the ground and it looks perfect.
This is going in my notebook titled "Things I Didn't Know about Surface Dwellers."
Thee point perspective is.... weird. Basically, unless you want the specific effect that it gives, to make it look right you either have to fake it, or put the top perspective point really really far away. Otherwise it sort of looks like a 16mm shift lens, not something you use every day. (sorry... that's the photographer in me showing).
The building looks like it's leaning because the horizon's not at the eye level of the panel's point of view. It's not actually leaning, it just feels off because we're seeing it from a position that doesn't really exist.
The base of the building needs to be a little wider. that's why it looks like it is leaning. Take a box, hold it and try to match it up as best as you can with the buildings angle. It will give you a reference.
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I'm agreeing with Sparrow. You've drawn the normal 2-point perspective with a third point just thrown in. The two horizon points need to be well below the bottom of the page and the third should be well above the top. The leaning effect you're getting is because you've squashed the box too much. It's the same effect you get when you put the vanishing points in 2-point perspective too close together.
Thank you for your helpful input! I'll get right to redrawing the panel after work today.
I totally agree about the horizon. I should have put it below the panel, I see that now. And the reason for that is... that in a panel like this, the "camera" is facing upwards, right? And everything below the horizon you have to look down to see. Have I understood correctly?
Perspective is hard. *shudders at the thought of his older pages* Oh well, I'm getting there.
Try this. Stand in a room and look straight ahead. The point on the wall you're looking at is where the vanishing point for that wall is. Look to your left and right. The point where you're looking is the vanishing point for those two walls. Directly above is the vanishing point for the ceiling.
As long as you stand in the exact same place and keep your eye level at the same height, those vanishing points do not change.
Turn say 30 degrees to the left and look up slightly. Pick the vanishing points that are closest to the direction you're facing. This would be the one to the left, the one forward and the one above.
I haven't figured out how to place the vanishing points on (or off) the page, however. I'm sure it can be figured mathematically, but I don't know how. You can fake it. Just use your best guess to gauge how far from the edge your vanishing point should be.
It's not perfect,... but it's not that bad. If it was a larger panel I'd worry about it,.. but if it would cause you to be late to redraw that panel,.. I'd let it slide.
Don't know if you received any feedback directly on your site but the finished product looks great. Shading, perspective and coloring of the foreground building all works well with other panels on the page. Cheers.
just looked at the site - very slick art - just what i like also its very clean -
perspective is a *&^$%# - but you seem to have it well in hand -
over all i think you are fine -
i like the designs of the charcters and the buildings
and the costuming
Anyone who considers protocol unimportant has never dealt with a cat.
-- R. Heinlein
And the reason for that is... that in a panel like this, the "camera" is facing upwards, right? And everything below the horizon you have to look down to see. Have I understood correctly? 
